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Minami Alps Onsen Iida

Iida, Nagano, Minami Alps (Chubu), Japan
Minami Alps Onsen Iida
Location
Iida, Nagano, Minami Alps (Chubu), Japan
Water type
bicarbonate
Temperature
40 °C
pH
8

Water profile

Thermicity
Sedative
40 °C
LowHigh

Relaxing — deep, immediate muscle release.

Mineralisation
Restorative
LowHigh

Loaded with major ions — the essential minerals (Ca, Mg).

Buoyancy
Standard buoyancy
LowHigh

Soft water — natural, classic buoyancy.

BicarbonatesSodiumCalcium

Minami Alps Onsen Iida is a thermal bathing facility in Iida City in the southern Ina Valley of Nagano Prefecture, a city renowned as Japan's apple-producing heartland where extensive orchard terraces on the valley slopes produce some of the country's finest fruit, and as the southern gateway to the Minami Alps, the dramatic range of 3,000-meter peaks including Kita-dake — Japan's second-highest mountain — that rises abruptly from the eastern edge of the Ina Valley in a wall of alpine grandeur visible from the city. Iida is also famous as the birthplace and national center of the Kabuki puppet theater tradition known as Imozuru Kikiuchi Daikagura, and the city preserves one of Japan's finest collections of traditional neighborhood-based Kabuki theater groups, the za, who perform in elaborate local festivals that keep alive a theatrical tradition unique to the southern Shinano cultural zone. The sodium-bicarbonate thermal waters here warm visitors to a city of extraordinary cultural richness and alpine beauty, where Japan's second-highest peak, remarkable folk theater traditions, and world-class apple orchards create an unusually complete and locally grounded destination in the southern Japanese Alps.

Insider tip — Nestled in the Southern Alps foothills near Iida city, this onsen draws soft bicarbonate water ideal for sensitive skin. The surrounding Ina Valley frames every outdoor bath with a panorama of cedar-clad ridges. Visit in late October when the koyo foliage turns the valley walls copper and crimson. Early morning slots before 8 am are virtually crowd-free.
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Frequently asked questions

How hot is the water?
The water runs quite hot here, around 40 °C — a sedative water that brings immediate muscle release.
What type of water is found here?
This spot features bicarbonate water.
What is the best season to visit?
The most favourable period for this spot is: Toute l'année (idéal automne-hiver).